Parker T. Jeffery & Haswell William A. <br/><br/>
Textbook of zoology invertebrates 

 - The Macmillan press, London  1972 
 - xix,874 
<br/><br/><label>ISBN: </label>333 14107  5 
<br/><br/><label>Dewey Class. No.: </label>592 Par /Has